[jjb3]

If I have a 150x2 amp and 92db sensitivity speakers and never exceed 92db listening levels, is a more powerful amp going to make any difference? I don't see how it would since I am not even using the headroom available in my current amp. I'm just using 1 watt, and whatever peaks require. Right?

 

[redrol]

If I have a 150x2 amp and 92db sensitivity speakers and never exceed 92db listening levels, is a more powerful amp going to make any difference? I don't see how it would since I am not even using the headroom available in my current amp. I'm just using 1 watt, and whatever peaks require. Right?

How do you know? Have you measured? A weighted 92db is decently loud.

 

[jjb3]

I used 3 different spl apps and I don't ever exceed 90db. I guess I have sensitive hearing. Trying to determine if a higher power amp will do me any good. I dont think it will.

 

[redrol]

I seriously doubt a phone app can measure that correctly but I don't know for sure.

150x2 sounds fine probably.

 

[jjb3]

Yeah I have no idea if they are accurate except to say that all three measure within a decibel or so of each other. I am looking at a 500wx2 amp but I think that's probably overkill for my listening habits.

 

[bigshot]

More powerful amps are more important for multichannel than 2 channel.

 

[The Jester]

Depends a lot on the amp and speakers, more info would be handy … need to look at an impedance sweep for the speakers and see how low they drop in the bass end, lower resistance needs more power, then look at the amp specs or any available test results … if your speakers drop to 4 ohms or even 2 ohms the amp will need to have matching output … a perfect power amp will double the power as the resistance is halved so 150w into 8 ohms, 300w into 4 ohms and 600w into 2 ohms … if your speakers impedance does drop really low in the bass end you may be better off with a better quality “lower powered” amp that could do 80w into 8 ohms and then approach the theoretical doubling at 4 and 2 ohms …